I've put an initial release of client/server bindings for Lua for XML-RPC at http://www.place.org/~nop/luaxmlrpc-0.0.tar.gz . It contains my lxp expat binding, and uses LuaSocket for client transport. For more information on XML-RPC, see http://www.xmlrpc.org/ . Although the packaging and documentation are scant, this package successfully passes the validation tests at http://validator.xmlrpc.com/ . Jay